Effects of concentrate replacement by feed blocks on ruminal fermentation and microbial growth in goats and single-flow continuous-culture fermenters1
In: Journal of Animal Science, Jg. 87 (2009-04-01), S. 1321-1333
Online
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Zugriff:
The effect of replacing concentrate with 2 different feed blocks (FB) on ruminal fermentation and microbial growth was evaluated in goats and in single-flow continuous-culture fermenters. Diets consisted of alfalfa hay plus concentrate and alfalfa hay plus concentrate with 1 of the 2 studied FB. Three trials were carried out with 6 rumen-fistulated Granadina goats and 3 incubation runs in 6 single-flow continuous-culture fermenters. Experimental treatments were assigned randomly within each run, with 2 repetitions for each diet. At the end of each in vivo trial, the rumen contents were obtained for inoculating the fermenters. For each incubation run, the fermenters were inoculated with ruminal fluid from goats fed the same diet supplied to the corresponding fermenter flask. The average pH values, total and individual VFA, and NH3-N concentrations, and acetate: propionate ratios in the rumen of goats were not affected (P >= 0.10) by diet, whereas the microbial N flow (MNF) and efficiency were affected (P
| Titel: |
Effects of concentrate replacement by feed blocks on ruminal fermentation and microbial growth in goats and single-flow continuous-culture fermenters1
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| Autor/in / Beteiligte Person: | Morales-García, E. Y. ; Cantalapiedra-Hijar, Gonzalo ; Molina-Alcaide, Eduarda ; Pascual, M. R. ; Martín-García, A. I. ; Consejo Superior de Investigaciones Científicas [Madrid] (CSIC) ; Depto. de zootecnia ; Universidade Estadual de Maringá ; Unité de Recherches sur les Herbivores (URH) ; Institut National de la Recherche Agronomique (INRA) ; Consejo Interinstitucional de Ciencia y Tecnologia (CICYT)AGL2004-04755-C02-02Junta de AndaluciaP07-RNM-2746Spanish Government ; Unité Mixte de Recherches sur les Herbivores - UMR 1213 (UMRH) ; VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Recherche Agronomique (INRA) |
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| Zeitschrift: | Journal of Animal Science, Jg. 87 (2009-04-01), S. 1321-1333 |
| Veröffentlichung: | Oxford University Press (OUP), 2009 |
| Medientyp: | unknown |
| ISSN: | 1525-3163 (print) ; 0021-8812 (print) |
| DOI: | 10.2527/jas.2008-1263 |
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